Lexus ES300 (1997 year). Manual — part 299
CO02P–01
P12942
CO–8
–
COOLING
WATER PUMP
925
1997 LEXUS ES300 (RM511U)
INSTALLATION
1.
INSTALL WATER PUMP
Install a new gasket and the water pump with the 4 bolts and 2
nuts.
Torque: 6 N·m (60 kgf·cm, 53 in.·lbf)
NOTICE:
Do not get oil on the gasket.
2.
INSTALL NO.3 TIMING BELT COVER
(See page
3.
INSTALL NO.2 IDLER PULLEY
(See page
4.
INSTALL CAMSHAFT TIMING PULLEYS
(See page
5.
INSTALL TIMING BELT
(See page
6.
FILL WITH ENGINE COOLANT
7.
START ENGINE AND CHECK FOR LEAKS
8.
RECHECK ENGINE COOLANT LEVEL
CO02Q–04
A13162
EGR Vacuum Hose
MAF Meter Connector
EVAP Hose
Air Cleaner Cap
Assembly
Air Filter
Engine Wire Protector
No.2 ECT
Switch
Connector
Thermostat
Gasket
Water Inlet
Water Inlet
Pipe
N·m (kgf·cm, ft·lbf)
Non–reusable part
: Specified torque
O–Ring
19.5 (200, 14)
8 (80, 69 in.·lbf)
–
COOLING
THERMOSTAT
CO–9
926
1997 LEXUS ES300 (RM511U)
THERMOSTAT
COMPONENTS
CO02R–01
S04581
S04502
S04503
CO–10
–
COOLING
THERMOSTAT
927
1997 LEXUS ES300 (RM511U)
REMOVAL
HINT:
Removal of the thermostat would have an adverse effect, caus-
ing a lowering of cooling efficiency. Do not remove the thermo-
stat, even if the engine tends to overheat.
1.
DRAIN ENGINE COOLANT
2.
REMOVE AIR CLEANER CAP ASSEMBLY AND AIR
FILTER
3.
DISCONNECT ECT SWITCH CONNECTOR
4.
DISCONNECT ENGINE WIRE PROTECTOR FROM
WATER INLET AND RH CYLINDER HEAD
Remove the 2 nuts, and disconnect the engine wire protector
from the water inlet and cylinder head.
5.
DISCONNECT WATER INLET PIPE FROM WATER
INLET AND LH CYLINDER HEAD
(a)
Remove the bolt, and disconnect the inlet pipe from the
water inlet.
(b)
Remove the O–ring from the inlet pipe.
6.
REMOVE WATER INLET AND THERMOSTAT
(a)
Remove the 3 nuts, water inlet and thermostat.
(b)
Remove the gasket from the thermostat.
CO02S–01
P13255
CO0601
Z10579
10 mm
–
COOLING
THERMOSTAT
CO–11
928
1997 LEXUS ES300 (RM511U)
INSPECTION
INSPECT THERMOSTAT
HINT:
The thermostat is numbered with the valve opening tempera-
ture.
(a)
Immerse the thermostat in water and gradually heat the
water.
(b)
Check the valve opening temperature.
Valve opening temperature:
80 – 84
°
C (176 – 183
°
F)
If the valve opening temperature is not as specified, replace the
thermostat.
(c)
Check the valve lift.
Valve lift: 10.0 mm (0.394 in.) or more at 95
°
C (203
°
F)
If the valve lift is not as specified, replace the thermostat.
(d)
Check that the valve is fully closed when the thermostat
is at low temperatures (below 40
°
C (104
°
F)).
If not closed, replace the thermostat.
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